Finding the Fourth Proportional to 3,196.12, 4,792.62 and 1,221.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.12 : 4,792.62 = 1,221.84 : x
2. Step 2: Convert to fraction form
   3,196.12/4,792.62 = 1,221.84/x
3. Step 3: Cross multiply
   3,196.12x = 4,792.62 × 1,221.84
4. Step 4: Simplify right side
   3,196.12x = 5,855,814.82
5. Step 5: Solve for x
   x = 5,855,814.82/3,196.12
6. Step 6: Final answer
   x = 1,832.16